Section 526 - Rejection of rate increase requests due to inadequate quality or quantity of service(a) General rule.--The commission may reject, in whole or in part, a public utility's request to increase its rates where the commission concludes, after hearing, that the service rendered by the public utility is inadequate in that it fails to meet quantity or quality for the type of service provided.(b) Other powers and duties preserved.--This section shall not be construed to diminish the powers and duties of the commission under any other provision of law to remedy inadequate service by a public utility. 1986, July 10, P.L. 1238, No. 114, § 5, imd. effective.